I have to say that joke is quite literally the funniest I have ever been told (sorry it's also the lease politically correct). It was told to me by a half Danish/half German colleague at work with such a stern pause in the middle I didn't see the punchline coming.

joke not the other one !
Both pretty awful but with the right comedic timing you can't resist. What Jimmy Carr would refer to as a 'monster feral guffaw followed by the gasp of realisation at what you’re laughing at'

Manning did a lot of material like that:
“My grandfather was an unorthodox Jew. He was a Nazi.” Not very funny to read, but with his delivery, it became so. I’ve been trying, unsuccessfully, to find the Spitting Image sketch where he complains of running out of people to hate; next scene, he’s on stage: “Bernard Manning, that fat bastard, I fookin’ ‘ate him.’

I heard a clergyman friend give a talk on Remembrance Day. He spoke about his grandfather, who fought in the Second World War. He told us how his grandfather would put on his old army uniform, complete with medals, and reminisce about the pals he made in the war, and how he kept up with them. Our friend painted a very moving picture of a silver-haired war veteran, with his fond memories and annual reunions, and pride in his uniform and the medals he had won in various campaigns.

Funniest speach I ever heard was by a young Catholic priest at Liecestershire cricket club annual dinner. He started by saying he had suffered a bad case of premature ejaculation... "I'm OK now but for a while it was touch and go." and went on to tell some of the most sexist and racist jokes I have ever heard. The audience, 50% of whom were Indian, loved it. He called the winner of the raffle as "Mr. Singh" and half the hall got up.

Mind you our village vicar likes a joke. He did a blessing at some village do starting with. "Do you know, the Bible has many stories...here's a few that didn't make it to the final cut." and then doing 5 minutes of stand up.